Explanation:

- Understanding India's GDP Composition:

- India's GDP is divided among three primary sectors: agriculture, manufacturing (industry), and services.

- In recent years, the services sector has grown substantially and contributes significantly to the GDP.

- Sector Contributions:

- Manufacturing: Important but smaller compared to services.

- Services: Includes IT, banking, telecommunications, and more, contributing the largest share to GDP.

- Agriculture: Vital for employment but a smaller GDP share compared to services.

- Option Analysis:

- Option 1 - Manufacturing: Incorrect, as its GDP share is less than services.

- Option 2 - Services: Correct, as it is the largest contributor.

- Option 3 - Agriculture: Plays a smaller role in GDP compared to services.

- Option 4 - None of the above: Incorrect, as Option 2 is correct.

- The correct answer is Services from Option 2.